U-play was only in the first chapter.
The uke love to have his urethra stimulated. The seme is selling urethral stimulation toys.
The uke is traumatised by dark places.
The uke woke up after being drunk at the bar and found himself being harassed.
The uke ask the internet for love advice in gay forum. The seme found out.
The uke, a teacher wanted to convince the seme to apply for K University. Seme agreed if the uke show him his crying face.
The uke hated his half brother.
The uke, oniichan is living together with seme, a teacher.
The seme, a teacher is sadist and uke is his one of his students. One day, uke's classmate saw them having sex.
The seme is a doctor and sadist.
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